Is blood really blue?

I heard that blood is blue if it doesn't hit oxygen but isn't there oxygen in your blood. I put a flashlight on my leg and it glowed red not blue.

4 Answers

  • Anonymous
    9 years ago
    Favorite Answer

    Blood is alwas red because first your blood alwas has oxygen in it and alsO your skin makes your blood look blue from how thick your skin is

  • Greg
    Lv 7
    9 years ago

    Human blood is red, even when low on oxygen. The color is due to the iron content, not oxygen levels.

  • Lana
    Lv 4
    9 years ago

    Yes it's blue. If blood always had oxygen there would be no reason for it to circulate.

  • Anonymous
    9 years ago


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